Hanger-block.



H. G. CARLSON. l

' HANGER BLOGK., APPLICATION :PI-LED JAN4, 1909.

Patented P61121, 1911.

i nrrnn srnrns PTENT onsite.

HJ'ALMAR G. CARLSON, OF WORCESTER, MASSACHUSETTS, ASSIGNOR T0 WORCESTERFIRE EXTINGUISHER COMPANY, OF WORCESTER, MASSACHUSETTS, A CORPORA- TION0F MASSACHUSETTS.

.HANGER-BLOCK.

Specification of Letters'Patent.

Patented Fell- 21, 1911.

` Application filed January 4, 1909. Serial No. 470,722.

To all whomv it may concern:

Be it known that I, HJALMAR G. CARLSON, a citizen of the United States,residing at IVorcester, in the county of Worcester and Commonwealth ofMassachusetts', have invented a new and useful Improvement inHanger-Blocks, of which the following is a specification accompanied `bydrawings, forming a part 0f the salne, in which- Figure l shows myimproved hanger block in position and a pipe suspended therefrom. Fig. 2is a section of my improved hanger block on line 2 2, Fig. 4. Fig. -3 isa section on line 3 3, Fig. 4. Fig. 4 is a bottom view of my improvedblock.

Similar reference figures referto similar parts in the different views.

My invention relates'to hanger blocks arranged to ai'ord means ofsupport from a horizontal surface of cement or similar material and tobe` embedded in the cement while it is still plastic, and it consists inthe construction and arrangement of parts' as hereinafter described andpointed out in the annexed claim.

Referring to the accompanying drawings, 1 is a cement ceiling, 2 is ahanger block embedded therein, the lower portion 0f which is providedwith lips 3 forming ways 3, between which is supported a beveled nutl-eapable of sliding in said ways and having a screw threaded centralopening 5,

in which is inserted thesorew threaded end of a rod the other end oflwhich is prolvided with asupportlngveyc 7 arranged, in

the present instance, to support a-pipe 8 as shown .in Fig. l. The nut4t 1s arranged to slide in the ways 3 to provide for the alinement ofsuccessive hangers when theyarc employed to support a single pipe. Thisconstruction of ways, a not sliding in said ways, and a screw threadedrod is well y known and forms no part of my invention.

The hanger block is usually constructed of cast metal and, in theordinary block, the nut 4 is inserted in the opening 9 between the ways3il through one end thereof, which is left open for the purpose. This o)en end is afterward closed by a sheet meta plate, Which is driven intothe opening 9 -and must fit therein with considerable accuracy.

In my improved construction, I close both ends of the opening 9 betweenthe ways. 8 when the cast metal block is made. and to provide for theinsertion of the nut 4, I shape the opening 9 with a curved recess 10 atone side of the bottom, so that the nut when sutliciently inclined, asshown in Fig. 3, will enter the recess 10 and allow the corner l1 of thenut 4 to pass the beveled lip 3. The recess l0 may extend the entirelength of the .ways 3a, or be but slightl; wider than the nut, as Shown.The smicircular shape of the recess 10 allows the base l2 of the nut lto be brought parallel with the base of the opening 9 between the ways3, and the nut 4 is held by against a vertical downward 2. To remove thenut 4, it

v 1s inclined as shown in Fig. 3, when it will enter the recess l0 andthe pass the lip In my.improved construction, I am enabled lto cast theboth ends of the opening 9 integral with the lips 3, by which thenecessity of inserting ametal plate is obviated. In the ordinary hangerblock the lugs 13 are placed at diametrically opposite corners of theblock, and are provided with 4holes by corner l1 will which the block isattached to the wooden frame used for receiving the cement in itsplastic` condition. In my improved block thelugs are brought directlyopposite in the center of the block, s0 that I am enabled to e1nploylugs with slotted or V-shaped openings 14, which may be cast in theblock,

the lugs ll thereby obviated.

. I claim,

A hanger block arranged to be inserted in coulent construction andprovided with lips on each side of said block converging downwa rdly andextending throughout` the length of the block forming longitudinalsupporting ways, a beveled nut of larger dimensions than the distancebetween the lower edges of saidxlips, with the beveled sides of said nutarranged to contact with the inside of said converging lips, and with arecess above and at one side of said longitudinal ways of a depth andwidth suliicient to allow the insertion of said nut in an inclinedposition between said lips.

Dated this first day of January 1909.

HJALMAR G. CARLSON. Witnesses:

Gnonon I. Roonwoon, JOHN P. ASHER, Jr.

the lips 3 and the necessity of boring holes through

